DE6606318U - DEVICE FOR DISPERSING GASES AND / OR LIQUIDS AND / OR SOLIDS IN LIQUIDS - Google Patents

Description

Richard-Wagner-Straße Ί 6 ¹³ * November 1967 Telephone 24444ο

Erich Karl Todtenhaupt Schopfheim / Baden Karlstrasse 8

Patent and utility model registration: Germany - From divorce registration to T 27 724 ΠΙ / 12 e (A 10 149) -

Password: impulse countercurrent II A 10 463

4 / Z

Device for diapering gases and / or liquids and / or solids in liquids

The present invention relates to a device for dispersing gases and / or liquids and / or solids in Liquid arises from a container with an era in it around a preferably a vertical axis rotating driven stirrer, on the shaft of which Kührbl & tter are arranged in several planes of rotation, preferably perpendicular to the axis.

Devices for dispersing substances of the aforementioned type are already known, in which so-called stirrers Propeller, anchor, blade, disc stirrer or the like. Use Find. All such stirrers have more or less the disadvantage that they can be dispersed even with small differences in density. Substances none for an even distribution of the substances in the Generate sufficient vertical flow in the container. Even with big ones

-2 -

A 10463 - 2 -

11/13/1967 I.

Leistungeaufwand is set sarnte depending on the type of stirrer only the overall F container contents more or less in rotation without being dall & it caused sufficiently large Vertikalstrümungön, except | döi.i the effectiveness of the individual stirrers depends to a large extent on the filling level of the container, i.e. h »depends on the prevailing pressure of the goods to be dispersed in the plane of rotation of the stirrer.

Ee has therefore not lacked attempts "by devices of the various embodiments of uniform dispersions of Gaeen. and / or to produce liquids and / or solids in liquids. Devices are known in which the individual Agitator in Mohrei'en levels (rotating levels) are arranged one above the other on the drive shaft as well as devices in which additionally fixed flow conduits. built-in components are provided. In particular a device has become known in which on the stirrer shaft Arranged in several planes perpendicular to the axis) which have opposite threads from level to lübane.

By means of such devices it was possible in the effective range a more or less uniform distribution of the substances to be dispersed can be achieved by the individual stirring elements; however it is not possible in this way the for an even distribution of the substances to generate necessary flow components in the entire contents of the tank. In addition, in the devices that have become known, the the power consumed by the stirrer drive is considerable Factor of the operating costs of the dispersing process, which have to be kept low for reasons of economy.

It is the object of the present invention to provide a device to create dispersion that is independent of the container fill level by means of suitable flow conditions the production of more uniform Dispersions allowed in the entire contents of the container and their specific

Leadership performance, d. H. the power consumed by the stirrer drive

3 per m of the dispersion to be produced, is significantly lower

A 10 463 - 3 -

11/13/1967

than with known slide devices.

The object is achieved according to the invention by the following features:

st) each stirring blade is divided transversely into at least two stirring blade sections with respect to its longitudinal axis;

b) the Röhrblattabschiütte are to be cut to size from section employed with changing accessibility to the plane of rotation;

c) each lying in a plane of rotation on the same radius Rührfolatt sections are equally favored »

An embodiment has proven to be particularly advantageous "in which the stirring blade sections lying on the same radius have the same mobility in all sbatia (planes of rotation) and a further embodiment" in which the stirring blade sections lying on the same radius have variable mobility from level to level . In both of these embodiments, j ⁵ are preferably a each level two 180 against each other are arranged offset "a Rührblattpaar forming agitating blades" each stirring blade consists of two Rührblattabschnitten. The Rührblalitpaare are arranged offset from one another by 10 ° from level to level.

The design of the stirrer according to the invention achieves « that the active zone of a stirrer stage «d. H. the active zone of the agitator blades arranged in a plane of rotation «into that of the one below or the agitator level above intervenes. Both the substances introduced into the liquid and the liquid itself experience in each stirrer stage an axial, radial and tangential (peripheral) acceleration as well as a multiple diversion. Caused by the differently directed flow components in the active zone of a stirrer stage arise in particular on the outer circumference of each Level vortex fields «which are in the vortex fields of the darurter or above The lying step encompasses another, partly opposite, direction

A 10 463 -4 -

11/13/1967

The impacts to be dispersed are deflected. The one in everyone Axial flow components generated by the stirrer stage are poor large to end up with the specifically heavier components of the cu disperser To convey good to the surface and the specifically lighter components to the bottom of the container,

The yorgenftnniea _s yQn e £ «er stirrer stage, in general, the differently large-scale impulse-like flow components a result in an even distribution of the substances to be dispersed in the entire container. Compared to previously known devices for dispersing not only significantly better mixing results are achieved in this way, but also the power consumed by the stirrer drive is several times lower, which is crucial for economic operation, especially with large container and stirring dimensions Meaning is.

In the following description, the invention is based on a « .Examples in connection with the drawing explained in more detail:

Show in detail:

! Fig. 1 shows a vertical section through a device for dispersing with a stirrer consisting of five stages;

FIG. 2 shows a horizontal section through the device according to FIG. I along the line ΙΙ-Π;

3 shows a horizontal schmtt through the device according to FIG. I along the line "1-1";

Fig. 3a shows a variant of Fig. 3;

4 shows a stirring element in which the length axis of the stirring elements is in a distance parallel to the radial line of the guide line:

5 shows a stirring element in which the longitudinal axes of the rotary blades

A IQ 463 - δ -

11/13/1957 _{

inclined at an angle to the radial line of the stirrer shaft

to run. |

First, an embodiment of the device according to FIGS. 1 to 3 will be described. Xn a container 1 there is a revolving about a vertical axis agitator 5 which is driven by a motor. 2 On the agitator shaft 3, the individual agitator elements are arranged in five superimposed horizontal planes 10 and 14. The stirrer 5 therefore consists of five stages, in the present case all stirrers are located below the surface 4 4.e & sa dispersing material,

Each agitating element of a stage consists of two agitating blades 15 arranged offset by 180 degrees. Each agitating blade 5 generally has a fine longitudinal axis. A number of agitator blade sections 6 and 7 are divided transversely, which are employed from section 6 to section 7 with alternating speeds to the respective level 10 to 14. The agitating element located in plane 10, the top view of which is shown in FIG. 2, corresponds to the one -ier _{level 12 and 14 O} The agitating element located in plane 13, the top view of which is shown in FIG. 3, also corresponds

the one on level 11. The individual agitators are level

ο
offset by 90 to each other on level »

In Fig. 1 to 3 all have the same radius Hegenjden agitator blade sections same accessibility on »d. H. all stirrer blade sections close to the axis 6 have the same mobility among themselves, while all agitator blade sections 7 remote from the axis, however, are also the same among themselves to the sections 6 have opposite mobility.

The angle of attack of all the agitator blade sections is the simple point half drawn the same size. In practice, however, this is generally the case the angle of attack of the near-axis Eührbia «sections from that one distinguish off-axis stirring blade sections «. Likewise, the shape the stirring blade sections in the drawing only schematically in right

660631810.9.70

A 10 463 - β -

11/13/1967

corner shape shown. The stirring blade sections can, for example taper outwards «d» h. be trapezoidal, however, also have any other suitable shape. Both the steep angle and the shape of the stirring blade sections will always change according to hydrodynamic aspects in the special application

have to fix the case. j

In a plane also can more than two £ ~ n the same!

Rührblitter 15 offset from each other angular amount are located. Likewise j

the single Eührbl & tt can do more than swsi sections of changing I.

GIngigkeit be subdivided «The mutual angular distance of the stirring j

scroll in one level and from level to level is under the face 1

puokt to choose that the forces acting on the shaft 3 as possible from | are equal.

.Dine variant of the above-described AusfÜhrungsforin according to FIGS. 1 to 3 is shown by FIGS. 1, 2 and 3a. The agitator element according to FIG. 3 located in the same plane 13 or 11 has been replaced by an agitator element designed according to FIG. 3a. This agitator in turn consists of two agitator blades 16 arranged offset by IBO and forming a pair of agitator blades. Each stirring blade 16 with respect to its longitudinal axis transversely divided into /.wei Rührblattabschnitto 8 and 9, which are made of section 8 to section 9 with alternating movement rate to the plane of rotation 13 and 11, The RÜhrhlattabscnnitt 3 therefore has opposite movement rate 2S * -m Rührblattabschnitt 6 UNJ likewise the section 9 to section 7. In this second embodiment, the agitator blade sections 6 and 8 or 7 and 9 , which are on the same radius, have opposite mobility from level to level.

In certain applications for all it is advantageous to use the stirring blades 15 or 16 - as shown in Fig. 4 or 5 - to be arranged. Xn Fig. 4 veriiüu the longitudinal axis of the stirring blades in a certain horizontal direction Distance a runs parallel to the radial line of the agitator shaft 3. In FIG. 6 the longitudinal axis of the stirring blades 15 and 16 under a certain Angle w is inclined to the radial line of the stirrer well ο 3.

Claims (7)

AlQ 463 - 7 - 13.11.1S67 EXPECTATIONS 1} Device for dispersing gases and / or liquids and / or solids in liquids, consisting of a container with a stirrer which is driven around a preferably vertical axis and on the shaft of which green blades are arranged in several planes of rotation preferably perpendicular to the axis, characterized by the following features; a) each stirring blade (IS or 16) is in with respect to its longitudinal axis b) the Hührblattabschnitte are employed from section (or 8) to section (7 or 9} with alternating movement to the plane of rotation (10 to 14); c} which each lie in an ore plane (10 to 14) on the same radius- I the stirring "3altabschnitte (G, 8 and 7, 9) have the same movement rate. ^: 2) Device according to An & pruch 1, characterized in that the on the same Radius of the agitator blade sections (6 or 7) in all planes (10 to 14) have the same accessibility (Fig. 1 to 3). 3) Apparatus laacfo claim 1, characterized in that the agitator blade sections (6, 8 or 7, 9) lying on the same radius have changing mobility from plane to Eheae (Fig, 1,2, 3a). 4) Device according to at least one of claims 1 to 3, characterized in that, since 13 the stirring blade sections lying on the same radius have the same angle of attack. 5) Device according to at least one of claims 1 to 4, characterized in that, because in each level (10 to 14) there are two stirring blades arranged offset from one another by 180 and forming a pair of stirring blades (15 b: ss. 16), the & u ^ OT ^ wei £ üh ^ b ^ tföbschnitte (6, 7 or »8,9) A JO 488 - * - 13. U ₀ ISS? stand ^ are located. 6) Device according to claim 6, characterized in that «d & ß die blati are leaf pairs from Shme to level at 90 against each other 7) Device according to at least one of claims 1 to 6 «thereby ge indicated that the longitudinal axis of the RtihrerweUe (16 or « IB) runs at an iron horizontal distance a parallel to the radial line of the RtihrerweUe (8) {Fig. 4). S) device according to mf & de & at least one of the speeches 1 to 6, thereby marked «dafl the longitudinal axis of the mixing blitter (15 or« 16) below at an angle w to the radial line of the Kührerwell «(3) inclined v« ritft (Fig. 5).